linux-kernel - [PATCH 01/10] arm64: dts: fsl-ls1012a: Add default GIC address cells

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Message-Id: <20250822-b4-dts-interrupt-address-cells-imx-v1-1-f1b479da9340@linaro.org>
Date: Fri, 22 Aug 2025 15:31:10 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Shawn Guo <shawnguo@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, imx@...ts.linux.dev, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 01/10] arm64: dts: fsl-ls1012a: Add default GIC address
 cells

Add missing address-cells 0 to GIC interrupt node to silence W=1
warning:

  fsl-ls1012a.dtsi:548.4-551.32: Warning (interrupt_map): /soc/pcie@...0000:interrupt-map:
    Missing property '#address-cells' in node /interrupt-controller@...0000, using 0 as fallback

Value '0' is correct because:
1. GIC interrupt controller does not have children,
2. interrupt-map property (in PCI node) consists of five components and
   the fourth component "parent unit address", which size is defined by
   '#address-cells' of the node pointed to by the interrupt-parent
   component, is not used (=0)

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
index dd479889658d452142e6d50b507147ba91c799af..fc3e138077b86cd5e3cf95c3d336cb3c6e1c45ef 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
@@ -87,6 +87,7 @@ pmu {
 
 	gic: interrupt-controller@...0000 {
 		compatible = "arm,gic-400";
+		#address-cells = <0>;
 		#interrupt-cells = <3>;
 		interrupt-controller;
 		reg = <0x0 0x1401000 0 0x1000>, /* GICD */

-- 
2.48.1